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(No Model.) 6 Sheets-Sheet L.

H. SPHL. i FURNITURE SPRING MAKING MACHINE.

NO- 432.74.1- Patented July 22, 1890.

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FURNITURE SPRING MAKING MRGRINR. i No. 432.741. Patented July 22, 1890.

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(No Model.) 6 Sheets-Sheet 3.

H, SPHL. FURNITURE SPRING MAKING MACHINE. No. 432.741. Patented July 22., 1890.

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FURNITURE SPRING MAKING MACHINE. I vNo. 432,741. Patented July 22, 1890.

(No Model.) 6 Sheets- Sheet 5.

H. SPHL.

FURNITURE SPRING MAKING MACHINE.

y N0. 432,741. Patented July 22, 1890.

6 Sheets-Sheet 6.

(No Model.)

E. SPUHL.

FURNITURE SPRING MAKING MACHINE.

N0. 432,741. Patented July 22, 18901.

.HENRICH SP'I-IL, OF ST. GALL, ASSIGNOR OF ONE-HALF TO THE MASCHINEN- VERKSTATTEN AND EISENGIESSEREI ST. GEORGEN BEI ST. GALLEN, OF

ST. GEORGEN, SVITZERLAND.

FURNITURE-SPRING-MAKING itflACl-HNE.V

SPECIFICATION forming part of Letters Patent No. 432,741, dated July 22, 1890.

nppiication filed June 19, 1889. Serial No. 314,848. (No model.) Patented in France January '7, 1889, No. 195,227: in Belgium January '7, 1889, No. 84,556; in England January 7, 1889, No. 262, and in Germany January 8, 1889, No. 50,812.

To @ZZ whom it may concern.-

Be it known that l, HEINRICH SPHL, a citizen of the Federation of Switzerland, residing at St. Gall, Switzerland, have invented useful Improvements in VireSpring Machines,

(for which I have obtained a patent in Germany, No. 50,812, dated January 8, 1889, under the name Maschinen Verkstatten St. Georgen ,in France, No. 195,227 datedJanuary ro '7, 1889; in Belgium, No. 84,556, dated January 7,1889; in England, No. 262, dated January 7,

1889,11nder the name Gottfried von Siisskind,)

of which the following is a clear specification.

ln order to make my invention more clear,

x5 I refer to the accompanying drawings, in

which similar letters denote similar parts throughout the different views.

Figure 1 is a vertical section of my machine. Fig. 2showsahorizontal section. Fig.

zo 3 is a front view of the machine-frame, but with the shafts a and a3 cut away for the sake of clearness, the section-line running through the universal joints of the same in Fig. 1. Fig. 4 is a side elevation of the ma- 2 5 chine with the cog-wheelsj removed. Fig. 5 shows a top view, partly in section, of the guiding mechanism for the wire. Fig. 6 shows a side view of the same, partly in section. Fig. 7 shows an end view, partly in section, of the cutting-oft mechanism and guiding-rollers. Fig. 8 shows a detail vieW of the cutting off mechanism in section through the outer couplings f3 and f4. Fig. 9 shows a section on line a b, Fig. 8. Fig. 10

shows a top view of Fig. 8. Fig. 11 shows a side elevation of Fig. 9.

The construction of the machine is as follows:

The driving-shaft u, is journaled in the 4o stand A. To the shaft a is fitted the iiywheel B and friction-coupling Z). The coup' ling Z) is coupled by pulling the handle h3, which is connected to the coupling by the rod b2 and lever h. There is a brake b4 fitted to the lower end of the lever b', which, when the coupling b is pnt out of gear, presses on the rim of the fly-wheel B and stops the machine. The shaft a is fitted at its front end to the shaft a', which carries the cuttingoff mechanism bya universal joint. The upper shaft 5c a2 is likewise connected to the shaft as by a universal joint. The shaft a3 carries the roller c, which, together with the roller c', feeds the wire to the machine. The shafts a and 0.2 are geared together by the cog-wheels 0.4, a5, and 5 5 a", and b oth revolve in the same direction and with the same speed. It is necessary that they should revolve in the same direction, in order that the finished spring shall be cut off while moving. The shaft a can be raised 6o or lowered in the strap e by means of the screw g, for which purpose it is fitted inthe sliding journals CZ CZ', in order that the cutting-off apparatus may be adjusted to suit any diameter of spring. The upper shaft a3 is also 65 adjustable by the screw g and spring g2, in order that wire of different thicknesses may be used. The under roller;` c is driven from the shaft d3 by the cog-wheels c2 and c3. There is a small strap e fitted inside the larger 7o strap e, Fig. 1, to which is fastened the bearing d at the bottom and at the top a screw, by which means the roller c can be raised in order that the wire may be brought between the feed-rollers.

The form and size of the springs are obtained by the following mechanism: On the shaft a is fitted a worm al; which gears into teeth on the shaft j and revolves the same, and by means of the cog-wheels j and 7'2 and 8o adjustable wheeljLl on the segment j, Figs. 2 and 4, the shaft j is turned. The reason for placing gearing-wheel j* on the adjustable segment c7'5 is to enable the taking out andl changing of wheels fj?. For instance, if a larger wheel be substituted for j and a smaller wheel for ,78, a shorter spring will be made, since shaftj5 will revolve more quickly, and consequently the proj ectionj6 will com e sooner under projection m, thus setting the cutting- 9o off mechanism earlier in gear. To the end of this shaftji is fitted the ring k on the ballf ter over all, and vice versa.

joint Za and the washer k2. The ring 7c is clamped in any desired position by means of the nut 7a2.

According to the position of the ring la the position of the lever Zis varied. This lever Z turns on the pivot Z2, and is fitted with the guide-roller Z and at the other with a roller Z5, Fig. 5. The pivot Z2 is eccentrically fixed to a disk, which has rigidlyiixed to it a handlever, Fig. 5, and which is in its turn pivotedv to the lever Z5. Z5 is pivoted to the machineframe, and may be held in any desired position by means of the set-screw Z4. The pin Z2 is mounted on the lever Z5, in order that when Z2 stands at any point in the circle it describes the roller Z3 may be brought against the ring Zo by adjusting the lever Z5; otherwise if the pivot Z2 were standing nearly in its extreme upper position, Fig. 5, the roller Z3 would stand away from the ring 7c entirely. /Vhen the lever Z5 is placed in the desired position, it is clamped byv means of the screw Z4. By this means any desired pitch may be given to the wire. spring will necessarily be caused by the ring 7c; but the object of the l1and-lever,wl1ich maybe `controlled by a workman during the winding of the spring, is eitherto give the spring a still greater pitch in the middle,or by moving the hand-lever in the opposite direction to hinder the variation necessarily caused by the ring k. When the ring Zo is placed at right angles to the axis of the shaft L72, the lever Z and the roller Z are not influenced, but they remain in the same position, and the spring will be made parallel the whole length. The more the ring 7c is placed from a right angle the more is the guide-roll Z moved, and the spring is made of a larger diameter at the ends than in the center. When,the pivot Z2 is moved outward,the spring will have a larger diame- It will be seen from this that the springs may be made of any size and form, according to the position of the ring 7c and pivot Z2.

The springs are cut off as follows: The cutting-off mechanism is fitted to the front end of the shaft ct', and consists of the inner clutches f and f2 and the outer clutches or guides f3 and f4, Figs. 8, 9, and lO.' Both have straight stops, as seen in Fig. 9.

' f5 are brought together and the wire cut, Fig.

, 8. f7 is a ring for moving the back clutch.

The two back clutches f2 and fL1 form one piece, which is fitted loosely on the shaft a. The clutch f is fastened to the shaft a by lthe key ff, the end of which is formed vinto a A slight variation in the pitch lof the The cutters f5 and it-,has been pushed forward, is not pushed so far forward `that the nose f1@ may pass by the projection n on the bearing of the shaft. On the contrary, immediately when the back part begins to revolve the nose flo is driven against the projectionvn, thus pressing said back part still farther forward and shoving the knives f5 f6 together, whereby the wire is out off. As soon as the wire is cut off the cam j passes from under the projection on the lever m and the latter falls back under the iniiuence of the spring m5, pulling the coupling out of gear. 4In order,however, that the coupling may be brought into position with the knives upward, so that the next spring may be cut off at the next revolution of the shaft d', which revolves continually, the spring end of the key fg snaps into the groove f8 in the back part of coupling f f2 and turns it so far around until the nose f 10 strikes against the projection n and holds thereby the back part of the coupling stationary in the position shown in Fig. 10 until the next spring is wound and cam je again comes under the proj ection m..

The object of the spring and spindle 'm2 is,

that on the levers m m being' pushed forward by the cam je the whole coupling shall not be forced forward, in which case if the clutches do not stand exactly in the right position the same would be liable to be broken or become notched; but the back part of the coup ling will be able to spring back in the long slit in the lever m and wait until the revolving part of the same comes into the proper position, when it will immediately spring in gear under inliuence of the spring and spindle fm2, Fig. 1l.

f Having now particularly described and ascertained my invention, what I claim as my invention, and desire to secure by Letters Patent of the United States, is

l. In wire-spring machines,the rotary shaft d3, having the roll c mounted thereon, the lever Z, having at one end the roll Z and at the other the roll Z3, the disk Zo, adjustably mounted on and at an angle to the shaft ja, and intermediate connections between the shafts ,7'3 and a3, substantially as specified.

2. The combination of the cutting-o arrangement for the springs attached to shaft a and consisting of the inner clutches f f2, outer clutches f3 f4, combined spring and key fg, cutters f5 f6, guiding-ring f7, back clutch f7 f4, having nose flo on ring f, with bearing CZ, having projection n, in the manner substantially as described.

3. The combination of the lever Z, pivoted at Z2, the pivot Z2 being eccentrically movable on the adjustable lever Z5 with the rollers Z IOO IIO

IIS

and Z3; thelatterruuning ou the disk 7a, which justable in strap e', in the manner substawv 1o is adjustable 0n the shaft js by means of balltially as described.

joint 7c', in the manner substantially as de- In Witness whereof I have hereunto Set my scribed. hand in presence of two Witnesses.

1 2 4. lhe oomblnetlon of the shafts a ce conl HEINRICH SPUHL neoted byuniversal joints with the shafts d and a3, respectively, the latter running in the Vif/nesses:

adjustable bearings (l and d', the bearing (Z LOUIS B. GRANT,

being adjustable in the strap e, bearing rl ad- 1 W'. HENRY ROBERTSON. 

